Glass-molding apparatus.



PATENTED JULY 30, 1907.

MGGLELLAND MYERS.

GLASS MOLDING APPARATUS. I

APPLICATION FILED APR. 17, 1906.

2 SHEETS-SHEET 1:

eslino STATES A rn r OFFiQE.

lcCLELLAND MYERS, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO HENRY M. SCIP LI OF SAN FRANCISCO, CALIFORNIA. v

GLASS-MOLDING APPARATUS.

Specification of Letters Patent.

Patented July so, 1907.

Application filed April 17,1906. Serial No. 312,160.

To all whom it may concern:

Be it known that I, MCCLELLANI) Mrnns, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in f Glass-Molding Apparatus, of which the following is a I my said prior patents.

specification. I

This invention relates to glass molding apparatus and is in the nature of an improvement upon the construction disclosed in my prior patents Nos. 809,969 and 810,375, both granted January 16, 1906, the objectof the present invention being to simplify and improve the construction disclosed in said patents and matecombination and arrangement of parts, hereinafter more fullydescribcd, illustrated and claimed. I

In the accompanying drawings, Figure 1 is a side elevation of the glass molding apparatus of this inven-stion. Fig. 2 is a-vertical sectiorial view'oi the same. Fig. 3 is a plan view thereof. Fig. 4 is a sectional plan view of the same.

m 'lhe'apparatus or machine'contemplat'ed in this in vention'comprises a base or bed-plate A, and the same may be mounted upon truck-wheels, as shown, for

facilitating the ,movement. of themachine as'a whole.

7 from place to place.

Extending upward centrally from the bed-plate A is i a king post orrc entral column B, the same being fastened permanently to the bed-plate and extending upward a suital 10 height where it is provided with aborizt-n'itally extending bracket arm 18.

Supported by the outer end of the bracket arm 18 is a cylinder 2 in which is mounted a piston .C which carries a piston rod 7 having at its lower end a plunger or presser-head 3, by which molten glass iscompressed iu the mold hereinafter described. The cylinder is provided with the usual stufling boxes at opposite ends thereof.

.The column or post B maybe made in several sections superimposed one upon the other and'bolted or otherwise fastened together, as at b, and at a suitable I elevation, said column is provided with a table support 'ltiwhich may be in the form of a circumferential flange,

said support being provided with an annular groove in its upper face in which are received antifriction balls b which also Work inan annular groove in the bottom or a turn-table 17 which encircles theoolurnn- B, the said turn-table being thus adapted to rotate upon a vertical axis formed by the column B. I

The turn-table 17 carries on its upper side a plurality of molds each consisting of a cup member 6 and a plug or mandrel member 4, the latter being shown in Fig. 2

as exteriorly threaded and tapered and carried by a. I

cap-plate D which is supportedon the upper ends of a series of supporting posts 5, the lower ends of which are above the top of the turn-table 17 by the meansdescribed.

Each mold member 6 is mounted fast upon the upper. end of a mold-actuating spindle 13, the lower end oi which is reduced to provide oppositely disposed flat sides adapted to be engaged by a turning chuck 9 hereinafter particularly referred to, The spindle 13 is threaded, as shown at d, and received in an internally. threaded bushing d secured to and extending downfirmly connected to the turn-table 17. The plug I -member.4 may be supported at any desired elevation wardly from the turn-table 17, as clearly shown in Fig." i

2. It will thus be'seen that by rotating the spindle 13,. the mold member 6 will be raised or lowered according to the direction in which said spindle is turned by means of the-chuck 9.

it will be observed that the plug member is centrally apertured, as shown at d to admit of the passage of the presser-head 3 in compressing the glass in the mold after the moldmember 6 has been elevated in the manner described. The spindle 13 is provided with a central longitudinal bore in which is slidingly received the stem 14 of an ejector, said stem being provided with a conical ejector head E which is countersunk in the bottom of the member 6 so as to lie flush therewith, as shown in .Fig. 2, and form a normally imperforate floor for the said member 6.

A plurality of chucks 9 and 10 is employed, each of said chucks comprising oppositely arranged and rigidly related jaws carried by theupper end oi a vertical shaft bed-plate A. Two of suchchucks areshown in the drawings and the shafts thereof are provided with hey-- clcd gear wheels 7 and 8 which mesh with and are driven by beveled gear wheels 7 and 8 on a horizontal chuck operating shaft 11 which is mounted in suitable hearings on the bed-plate A, as shown in Fig. 4. The shaft 11 is constantly in gear with the shafts F so that when the shaft 11 is revolved, motion is simultaneously transmitted to the vertical shafts carrying the chucks 9 and 10. i

The shaft 11 is driven by a spur gear wheel 12 on a short counter shaft C also mounted in suitablehearings on the bed-plate, as shown in Fig. 4, said gear 12meshing with a pinion on the shaft 11. The shait G is pro- .95 F mounted in a suitable bearing connected with the countershaft G, and by rotated ma position to have=the *means'ofth rod vided with a ratchet wheel 9 with which a pawl g engages, said pawl g being pivotzllly mounted on a collar H carriedby and mounted upon the piston rod 11. of the piston ofa cylinder 22 shown in Figs. fl and l. It will thus be seen that asthe piston rod k is reciproca ted, the pawlcarried thereby actuates the ratchet wheel on the means of the gearing 12, motion is transmitted to the chuck actuating shaft 11', thereby rotating both of the chucks 9 and 10 simultaneously and causing them to act upon the overlying mold actuating spindles for elovating lowering the mold members 6, as the case may be. I Arranged to a suitable point on the bed plate A is a cylinder 23 having an upwardly extending piston rodi which, when the table is locked by means hereinafter descibed, lies directly beneath one of the ejector stems v 1 l.- When the piston oi the cylinder 23 moyed up ward, it operates on the stem 14, lifting the ejector'aud ejecting themolcled glass article from the mold.

The means for lockingthe turn-table to 'prevent movement thereof while the glass articles are being molded'and ejected, consists of a latchiZQ in the form of i a rod extending vertically upward within a suitable,

stand or bearingp'ost 21f The upper end of said. lat;

is tapered, as shown in Fig 2, and is receivable in any one of a series of socket openings I in the turn-table 17; the latcli'being normally upheld by a supporting spring t'shownin Fig. 2. ,,Arrarlgedbeneath thebedqvlate A lever 19 which is fulcrumed oil the bodplate at one end and connected at a. point intermediate line-lids to the latch 20, said lever. extending outward beyond the bed-plate A where it is provided with a suitable foot-piece or treadle 1 9, as shown. At I any-timedesired, the operator may depress the lover l9 and move the latchfZQ dowhward to release the tu'rntable which may then be turned until the latch 20 soaps into the succeeding opening or socket .1 in the table, vvhen the molds will be properly positioned relatively to the pressephead 3and the ejector piston of the cylinder23.- "'1; y v

K designates aloof-Way valve from which supply and exhaust pipes 24 and 25 lead to the cylinder 2, while other .pipes 26 and 27 lead to the cylinders 22 and 23 respectively. Air or steam may be supplied to the cylinders for actuating the pistons thereof.

The operation of the apparatus may be briefly described as follows: When the turn table 17 is in the position shown in Figs. 1 and 2, the cup member 6 has been elevated by the beveled gear 8 after the glass has been placcd within said cup and the shaft 11 has been ro-' tated to hold the glass against the threaded plug 4. The turn table 17 is'then rotated toward the left, the spindle .13 moving outof the turning chuck l0 and iiito engagement with the turning chuck 9.

the shaft 11 turns the chuck 9 and withdraws the cup G from the plug 9, after which the turn table is further glass cap ejected by 14 and the cylinder 23 with its piston therein.

I claim:

1. In a iglass molding apparatus, a column, a turn ta- -'l)le j0i1rnaled on the column, a plurality of molds carried more rotatable chuck for oppositely by.the table, means for intermittently rotating said table I rotating and oppositely -r'u'ovlng up and down members of separate molds simultaneously. i

i a certalii point in the movement 'v0lvin g said'i-otn 'y mold member "same, and means table.

ing a vertically and means for locking the turn-table at the The next rotation of In a glass molding apparatus, a turn table, a plural ity of molds carried by said table. said molds each comprising a starionaryinembcr ands. relatively movable member anda rotatable chuck for moving up and down members of separate molds oppositely and simultaneously, and means for rotating the turn table.

I}. In glass molding apparatus; the combination of a turn table, a plurality of molds carricd by said table, and each mold comprising a movable member provided with a mold actuoting'spindlc. moans operating, at a certain point in the movement of the turn table to raise and lower said spindle and movable mcmlier, and a rotatable chuck for rotalinf; the turn table and holding it in operative position.

lnln glass molding apparatus, the combination of a turn-table, a plurality of molds carried thereby and each cnibodyinga movable member, a threaded spindle by which said movable member is carried, a rotatable chuck operating on said spindle at a certain pointin the movement of tlic turn-table to turn the spindle and raise or lower the movable mold member, and means for rotating said turn table. Y

In glass molding apparatus, the combination of a turn-table, a plurality of molds carried thereby and each embodying a movable mold member, a threaded spindleconnec'red to sold movable'mold member, a rotary chuck adapted to change said spindle at a certain point in the movement of, the turntable to rotate the spindle and raise or lower the movable mold member, and means for rotating said turn table intermittently.

6. ln; gl1iss'inoldlng apparatus. the combination of a turntable, a plurality oi molds carried thereby and each embodying a rotary mold 'g'agcment with the turn-table, a rotatable chuck located at i of the turn-table for reto raise and lower the for intermittently rotating said turn 7. In glass molding apparatus, the combination ol :1 turn-table, a series of molds carried thereby each embodying 21. rotary cup member having a threaded engagement with the turntable, a plugbri gated at a certain point in the mandrel member, means lo throw of the table to rotate member having a threaded 011- Quid, cup member in one direction, and m'eans located'at antlier point for rotating, said cup member in the other direction. l

luru table, 'a series of molds carrled'thoroby, each compris- SL111 glass'moldin g apparatus; the combination of a ing a rotary member having; a threaded engagement with the turntable, and simultaneously operated chucks located at points in the movement of the turn table, said chucks being- :idaptcd to engage with the rotary mold member, one

to turn said mold membcrin one direction and the other to turn said mold member by one rotary mold member is automatically elevated and another automatically depressed simultaneously.

9. In gloss molding apparatus; the combination of a in theopposite direction; where:

turn-table, a series of molds carried thereby, each comprlsmovable mold member and a stationary mold member, rotatable cliucks'for automatically elevatmombers at certain points in the throw of the turn-table,

able mold mcmbcrs arc being raised and lowered.

ll). lii glass molding apparatus; the combination of a turil table, a serlcspf molds carried thereby each compris m a vertically movable cup member and ii superimposed stationary plug member having, an opening Lhorotllrough, and a superimposed reclprocatlng lll'lSSOldllBRd operated by a cylinder connected with a stationary part of the machine'.'sald Dresser-head operating through the opening in the fixed plug member of.the mold.

11. In glass molding apparat'us, the combination of a time the movturn-table, a series of molds carried thereby each comprlsturn-table, a serlesptmolds carrledthcrebycach embodyln; :1 vertically movable cup member, mean'sfor raising.

.12. In glass molding apparatus, the comblnatlon of a 5 and lowering said cup members, an ejector having the head thereof countersunk in the floor of the cup member and a stem passing through the bottom of the cup member, anda piston adapted to cooperate with said stem at a certain point in the throw of the turntable.

13. In glass molding apparatus, the combination of a turn-table, a series of molds carried thereby each embodying a. vertically movable cup member, a. chuck for raising and lowering id cup member, a chuck operating shaft, a cylinder, a piston, and pawl and ratchet connections between said shaft and piston whereby motion is transmitted to the chuck.

14. In glass melding apparatus, the combination of a turn-table, a series of moldsv mounted thereon each embody ing a vertically movable 'cup member and a stationary plug member, each cup member being provided with a spindle having a threaded engagement with the turn-table, a plurality of chucks for transmitting rotary notion to said spindles in reverse directions, a common chuck operat ingshaft, and a cylinder gcarcd to said shaft and adapted to impart intermittent rotary motion thereto, substantially as (l eserihcdv In testimony whereof I alllx my signature in presence of two \ViLYlCSSQS,

' MIJCLELLAND MYERS. Witnesses Tiles. 1. SNEAK), M. A, MePnAK. 

